Ethylene oxide flash point

Ethylene oxide (freezing point -111.7°C, boiling point 10.4°C, flash point <18°C) is a colorless gas that condenses at low temperature into a mobile liquid. Ethylene oxide is miscible in all proportions with water or alcohol and is very soluble in ether. Ethylene oxide is slowly decomposed by water at standard conditions, converting into ethylene glycol (HOCH2CH2OH). 

Benzene is a clear, colorless, flammable liquid with a pleasant characteristic odor, bp 80.1°C, flash point -11.1°C, and ignition temperature 538°C. Benzene has been found to be very toxic and is on the list of Known to Be Human Carcinogens published every two years by the Department of Health and Human Services under the National Toxicology Program (NTP). There are four top 50 chemicals on this worst carcinogen list benzene 1,3-butadiene ethylene oxide and vinyl chloride. There are also four chemicals in the top 50 on the Reasonably Anticipated to Be Human Carcinogens list acrylonitrile, ethylene dichloride, formaldehyde, and propylene oxide. 

The primary manufacturing method of making ethylene glycol (ethane-1,2-diol, boiling point 197.6°C, density 1.1155, flash point 127°C) is from acid or thermal-catalyzed hydration and ring opening of the oxide. 

Styrene (phenyl ethylene, vinyl benzene freezing point -30.6°C, boiling point 145°C, density 0.9059, flash point 31.4°C) is made from ethylbenzene by dehydrogenation at high temperature (630°C) with various metal oxides as catalysts, including zinc, chromium, iron, or magnesium oxides coated on activated carbon, alumina, or bauxite (Fig. 1). Iron oxide on potassium carbonate is also used. 

BIBENZENE (92-52-4) CjjHio Combustible solid. Forms explosive mixture in air [explosion limits in air (vol %) 0.6 to 5.8 flash point 235°F/113°C cc autoignition temp 1004 F/540°C Fire Rating 1]. Vapor, dust, or mist forms explosive mixture with air. Contact with strong oxidizers can cause fire and explosions. On small fires, use dry chemical powder (such as Purple-K-Powder), foam, or COj extinguishers. BICARBONATO AMONICO (Spanish) (1066-33-7) see ammonium bicarbonate. BICARBURETTED HYDROGEN (74-85-1) see ethylene. 

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